package com.cet.regularexpression;

/**
 * @program: algorithm
 * @description:
 * @author: 陈恩涛
 * @create: 2021-06-22 15:24
 **/
public class Main13 {
    public static void main(String[] args) {
        String s = "the quick brown fox jumps over the lazy dog.";
        String r = s.replaceAll("\\s([a-z]{4})\\s", " <b>$1</b> ");
        System.out.println(r);
    }
}
